What's Tasty, Yellow, and Proves Nothing?

To an earnest evangelist in a popular YouTube video, the banana is "the atheist's nightmare."

God's creative genius, he says, is clearly evident in the tropical fruit's clever design, with ridges that perfectly fit the human grip, a nonslip surface, color indicators for ripeness, a convenient tabbed top, and a curved shape that angles the object invitingly toward the mouth.

To David Webster, a philosophy lecturer at Britain's University of Gloucestershire, the minute-long clip